使用以下代码可以在不同版本的ghostscript中实现相同的压缩行为:
/CompressLevel % 设置压缩级别,取值范围为0-9,0为不压缩,9为最高级压缩
{
/OneColorThreshold 5000 % 设置颜色阈值,可根据需要进行调整
/ColorImageDict
<<
/JPEG2000ColorACSImageDict
<<
/ColorTransform 1
/Columns 64
/Rows 64
/ColorTransform 1
/QFactor 0.5
/RedundantLevels 2
>>
/JPEGColorACSImageDict
<<
/ColorTransform 1
/QFactor 0.5
/AverageQFactor 0.5
/RedundantLevels 2
>>
>>
/GrayImageDict
<<
/JPEG2000GrayACSImageDict
<<
/ColorTransform 1
/Columns 64
/Rows 64
/ColorTransform 1
/QFactor 0.5
/RedundantLevels 2
>>
/JPEGGrayACSImageDict
<<
/QFactor 0.5
/AverageQFactor 0.5
/RedundantLevels 2
>>
>>
/ColorACSImageDict
<<
/JPEG2000ColorACSImageDict
<<
/ColorTransform 1
/Columns 64
/Rows 64
/ColorTransform 1
/QFactor 0.5
/RedundantLevels 2
>>
/JPEGColorACSImageDict
<<
/ColorTransform 1
/QFactor 0.5
/AverageQFactor 0.5
/RedundantLevels 2
>>
>>
/GrayACSImageDict
<<
/JPEG2000GrayACSImageDict
<<
/ColorTransform 1